Implement for corrugating plastic street-coverings.



M. J. MALLOY.

IMPLEMENT FOR UOBRUGATING PLASTIC STREET GOVBRINGS.

APPLICATION FILED FEB. 14, 1911.

Patented May 23, 1911.

2 SHEETS-SHEET 1.

WITNESSES M. J. MALLOY.

IMPLEMENT FOR GOBRUGATING PLASTIC STREET 00VERINGS.

APPLIOATIONIILED FEB. 14, 1011. 993,086.

2 BHEETBSHBET' 2.

IN VENT 0R max m4 62 Allomqy Patented May 23, 1911.

MICHAEL J'. MALLOY, OF DAVENPORT, IOWA.

IMPLEMENT FOR CORRUGATING PLASTIC STBEET-COVEBINGS.

Specification of Letters Patent.

Patented May 23, 1911.

Application filed February 14, 1911. Serial No. 608,556.

To all whom it may concern:

Be it known that I, MICHAEL J. MALLOY, a citizen of the United States, and a resident of Davenport, in the county of Scott and State of Iowa, have invented certain new and useful Improvements in Im lements for Corrugating Plastic Streetovierings,of which the following is a specifica- 1011. I My invention relates to devices for formng corrugations or grooves in street coverings, driveways, and the like, and has for its obj'ect the provision of a rolling tool having a removable cylindrical casing formed in semi-cylindrical segments to admit of removably and replaceably securing the casing in position, the casing being provided with a plurality of rows of bolt-holes to provide for removably securing-tongues or beads thereto to form the depressions iii the surface of the street covering.

My invention will be described in detail hereinafter and illustrated in the accompanying drawings, in which- Figure 1 is a top plan View of my improved implement with the casing removed from the roller; Fig. 2, a top plan View of one of the semi-cylmdrical segments of the casing artly broken away to show the easing be ore the corrugators are secured in position; Fig. 3, an end view of the semicylindrical casings with the corrugators in position; Fig. 4, a side view of Fig. 1, with the handle removed; Figs. 5, and 6, detail views on an enlarged scale of one of the corrugators shown in Figs. 2 and 3; Fig. 7, a view of the roller with the casing in position and another form of corrugator secured I thereto; and Figs. 8 and 9, detail views of the form of corrugator shown in Fig. 7. In .the drawings similar reference characters will be used to designate corresponding parts throughout all of the views.

1 indicates a shaft, to the ends of which are secured the-two ends of a forked handle 2. for operating the implement and having a roller-frame consisting. of rings 3, crossbars, 4, and longitudinal bars 5 secured thereto.

The casing of the roller that is secured to the roller-frame, above referred to, consists of two semi-cylindrical segmental plates 6, of any suitable material, that are secured together in any suitable manner (not shown) and provided with a plurality of rows of bolt-holes 7 in parallel rows around the segments.

8 in Figs..2, 5 and 6 indicates one form of what I denominate a corrugator, consisting of a head or tongue substantially triangular in cross-section, as shownin Fig. 6, with its sides formed concave, as shown at 8. These corrugators may be formed equal in length to the periphery of the segment to which they may be secured, or may b formed of any length desired.

In Figs. 7, 8, and 9 are shown corruga;

in the segments to hold them in position.

Having thus described myinvention, what I- claim is- I 1. An impression implement comprising a rotatable frame, a casing consist-ing of two semicylindrical segmental plates removably secured to said frame, and impression devices secured to said casing, substantially as shown and described.

2. An impression implement comprising a shaft, a forked handle secured to the shaft, by the two ends of the fork prongs, a'rotatable frame comprising rings, cross-bars secured to the rings,v and longitudinal bars engaging the holes in the casing, substan- 1;) connecting the rin said frame being jourtially as shown and described.

naled on the sha aforesaid, a casing se- In witness whereof,,I have hereunto set cured to said frame comprising two semi my hand in presence of two subscribing cylindrical segmental plates having a pluwitnesses.

rality of holes therein and removably se- MICHAEL J. MALLOY. cured to said rotatable frame, and impres- Witnesses: sion devices secured to the outer surface of A. E. CARROLL, said casing by means of securing members E. J. CARROLL. 

